48ct Energizer MAX AA Batteries $20

At just $0.41 per battery, this is the best price anywhere by at least $6 for this 48-Count of Energizer Max AA Batteries at Woot. They have amazing rating, 4.8 out of 5 stars, from thousands of reviewers on Amazon. These batteries hold power up to 12 years in storage, so you can save them for a rainy day if you don't need all 48 right away. Shipping is free when you log into your Prime account, or it adds $6.